Summary: Have you encountered errors and failed to restore database objects from corrupt SQL database? Here, this blog introduces you simple methods on how to restore SQL database successfully even if your SQLdatabase backup is corrupted due to sudden power failure, virus or malware attack etc.
There is one thing that organizations dread for their data is the sudden breakdown of power-supply. Most of the times, it leaves a greater impact than anticipated. Let’s take a situation when a SQL administrator in an organization is trying to update the SQL database and the power suddenly went off. Quite possible that database entries which the database admin was working on are not saved and hence there will be an urgent requirement to restore SQL database from backup but a bigger problem which he or she could not anticipate at that moment was that the corrupt database has the backup file also corrupted– a critical situation not foreseen initially.
Let’s discuss below methods to resolve this situation-
How to Restore SQL database using T-SQL
Restore SQL database manually using following steps-
This command will help to restore the database from .BAK file:
RESTORE DATABASE AdventureWorks FROM DISK = ‘C:\AdventureWorks.BAK’
Note: Transact-SQL or T-SQL resolves SQL issues by resolving a hostname in T-SQL, but resolving the hostname may not prove to be beneficial as the database will still remain corrupt, besides, database resolves to multiple IP addresses. Resolving hostname may further create conflicts. Though round-robin option DNS may provide different IPs but the procedure is not the sure-shot solution to restore SQL-database successfully.
Restore SQL database using SQL Server Management Studio
If the above method doesn’t work, use SQL server management studio which configures, manages and administers all components within SQL server. SQL server management studio is part of the licensed SQL database version and consists of script editors to act upon the corrupt database and resolve possible errors.
Follow below-listed steps to restore SQL database backup:
Connect to the instance of MS SQL server database and go to Object Explorer. Expand the server tree by clicking on the server name
Go to Databases and right-click on databases, followed by Restore Database
Click on Device and select the backup file.
Once you were done, Click OK
The following message will display
Refresh the database. Now you can see the restored database in Object Explorer
Note: Since the process of restoring database SQL Server from BAK file using SQL Server Management Studio can abort in the middle, there is no other solution but to use SQL Database repair software.
One of the efficient and most used SQL Database Repair tool is Stellar Repair for MS SQL Repair which enables users to fix all corruptions of SQL server database and recover inaccessible objects from MDF and NDF database files.
Below features explain the working of this tool:
Resolves Database corruption problem: Corruption due to hardware problems, bugs in SQL server, unexpected system shutdown and other related issues keep hitting SQL database. SQL recovery tool scans the entire database for corruption in MDF and NDF files, corrects the BIT-pattern to eliminate file corruption and bring the database to a consistent state.
Recovers Deleted database files: Repair function also includes recovery of deleted records of a corrupt database. There is no modification in the original hierarchy. Option to save newly created file just under the original file helps in determining the right file.
Validates Database Objects: Scanned Database objects are available for review. Review all objects along with their authenticity and validate each database file.
Connects Automatically: Possibly, power shutdown happens again. In that case, SQL recovery software connects with the database again and starts the repair process without disruption.
Interactive GUI: Graphical user interface enables users to choose the right options and perform recovery process with ease.
The corruption is SQL database is always upsetting. It entails a potentially high-pressure problem striking the Support Engineer who is not equipped enough to perform a sophisticated recovery with no prior intimation. Database and backup file corruption due to the disrupted power supply is an example of the high-end problem which can be resolved by deploying Stellar Repair for MS SQL which deals with all sorts of corruption to ensure complete and faster recovery and save recovered a database in the original or new file at preferred location. Database administrators and SQL database users can install and run this software using simple steps, to restore SQL server database successfully.
Priyanka is a technology expert working for key technology domains that revolve around Data Recovery and related software's. She got expertise on related subjects like SQL Database, Access Database, QuickBooks, and Microsoft Excel. Loves to write on different technology and data recovery subjects on regular basis. Technology freak who always found exploring neo-tech subjects, when not writing, research is something that keeps her going in life.